Exhaust muffler

a technology of exhaust muffler and exhaust pipe, which is applied in the direction of machines/engines, gas passages, gas chambers, etc., can solve the problems of unwanted oscillation of certain muffler components, unrestricted flow between the muffler pipe and the tank or sound chamber, and unwanted sound almost as bad, so as to maximize performance characteristics, reduce noise, and ensure the effect of tuning
US7942239B2Active Publication Date: 2011-05-17TMG PERFORMANCE PRODS
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
TMG PERFORMANCE PRODS
Publication Date
2011-05-17

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Abstract

A muffler for reducing the sounds of combustion gases exhausted from an internal combustion engine including an elongated fluid passage extending between an inlet and an outlet such that the outlet is in fluid communication with the inlet. Further, the inlet being connectable with the gases exhausted from the engine and the outlet being connectable with the atmosphere. The muffler further including an outer tank surrounding the passage and a tubular connector having a first end in fluid connection with the passage and a second end in fluid connection with the tank such that the connector produces a fluid connection between the passage and the tank. The connectors having a perforated resistance plate to restrict the fluid flow between said passage and said sound chamber thereby reducing the severity of the sound or fluid pulses entering and exiting said sound chamber, perforations in said perforated plate forming an open portion of said plate and said open portion being less than 60 percent.
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Description

[0001] This invention relates generally to mufflers for exhaust systems of the sound modifying type used with internal combustion engines to attenuate engine noise and more particularly to mufflers conventionally referred to as side branch and / or tank muffler systems. This application claims priority in Provisional Patent Application Ser. No. 60 / 958,885 that was filed on Jul. 10, 2007 which is incorporated by reference herein and is a Continuation in Part application of U.S. non-provisional patent application Ser. No. 12 / 217,857 filed on Jul. 9, 2008 now abandoned which is also incorporated by reference herein.

[0002] The invention is particularly applicable to and will be described with specific reference to a side branch and / or tank style muffler for use in both cars and trucks. Further, many of these muffler designs are well suited for high-performance vehicles including high-performance cars and trucks. However, as will be appreciated by those skilled in the art that the inventive ...

Claims

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